[RFI] Which filter to use?

doc at kd4e.com doc at kd4e.com
Mon Apr 4 15:09:01 PDT 2011

The plan is to either buy an existing assembled product,
or scale-up a pre-engineered and tested design.

I have never even considered trying to design my own.

Using an existing pre-engineered low-pass filter, such
as a Drake or Nye Viking, is also a very safe choice.

I'm looking for better numbers about existing filters
than the marketing departments have published.

> Doc, what you're trying is a serious engineering project, and requires
> serious RF engineering background, custom-built filters for each band,
> and serious test equipment to tune those filters. I suspect that there
> will be other major issues as well.  This is NOT a plug and play
> conversion. I don't mean to be insulting, but this sounds like it's way
> over your head. I'm an experienced EE, and there are many projects I
> would take on before this one. One of my good friends here in CA, a VERY
> experienced EE with very good HP test gear, took on a project to build
> his own bandpass filters. In bar conversation, he told me it was FAR
> more work than he had expected. And I wasn't surprised.
> 73, Jim K9YC
> http://lists.contesting.com/mailman/listinfo/rfi


Thanks! & 73, KD4E
David Colburn http://kd4e.com
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